/*-------------------------------------------------------
Javascript for tastycentral.com 
1/10/09
Bryan Cronk

-------------------------------------------------------*/

window.onload = prepareGallery;
	
function prepareGallery() {
	if(!document.getElementsByTagName) return false;
	if(!document.getElementById) return false;
	if(!document.getElementById("gallery-thumbs-list")) return false;
	var gallery = document.getElementById("gallery-thumbs-list");
	var links = gallery.getElementsByTagName("a");
	for (var i=0; i < links.length; i++) {
		links[0].setAttribute("class","selected");
		links[i].onclick = function() {
			return showPic(this);
			}
		}
		
	var prevnext = document.getElementById("prevnext");
	var prev = document.createElement("a");
		prev.setAttribute("href","#");
		prevText = document.createTextNode("<< previous");
		prev.appendChild(prevText);
		prev.onclick = function() {
			return prevPic();
		}	

	var next = document.createElement("a");
		next.setAttribute("href","#");
		nextText = document.createTextNode("next >>");
		next.appendChild(nextText);
		next.onclick = function() {
			return nextPic();
		}	
	
	var pipe = document.createTextNode(" | ");
		prevnext.appendChild(prev);
		prevnext.appendChild(pipe);
		prevnext.appendChild(next);
	}
	

function prevPic() {
	var thumbs = document.getElementById("gallery-thumbs-list");
	var span = thumbs.getElementsByTagName("a");
	for (var i=0; i < span.length; i++) {
		var spanClass = span[i].getAttribute("class");
		if(spanClass == "selected") {
			i--;
			if(i < 0) i = (span.length -1);
			showPic(span[i]);
			return false;
		}
	}
}	

function nextPic() {
	var thumbs = document.getElementById("gallery-thumbs-list");
	var span = thumbs.getElementsByTagName("a");
	for (var i=0; i < span.length; i++) {
		var spanClass = span[i].getAttribute("class");
		if(spanClass == "selected") {
			i++;
			if(i >= span.length) i=0;
			showPic(span[i]);
			return false;
		}
	}
}
	
function showPic(whichpic) {
	if(!document.getElementById("fullImage")) return true;
	var source = whichpic.getAttribute("href");
	var placeholder = document.getElementById("fullImage");
	var thumbs = document.getElementById("gallery-thumbs-list");
	var span = thumbs.getElementsByTagName("a");
	for (var i=0; i < span.length; i++) {
		span[i].setAttribute("class","noborder");
		}
	whichpic.setAttribute("class","selected");
	if(placeholder.nodeName != "IMG") return true;
	placeholder.setAttribute("src",source);
	if(!document.getElementById("gallery-meta")) return false;
	var text = whichpic.getAttribute("title") ? whichpic.getAttribute("title") : "";
	var description = document. getElementById("gallery-meta");
	if(description.firstChild.nodeType == 3) {
		description.firstChild.nodeValue = text;
	}

	return false;
}